One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,5)(4,12)(6,7)(8,10)(9,13)(11,15)(14,16)(17,18,22,21)(19,23,27,25)(20,28,29,24)(26,31,32,30)(33,34,39,40)(35,41,36,45)(37,42,48,38)(43,44,46,47)(2,7)(3,10)(4,13)(14,15)(17,18,22,21)(19,25,27,23)(20,28,29,24)(26,30,32,31)(34,40)(37,48)(41,45)(43,46)(2,7)(5,8)(9,12)(14,15)(18,21)(23,25)(24,28)(30,31)(33,35,39,36)(34,41,40,45)(37,43,48,46)(38,47,42,44)(1,3)(2,8)(4,11)(5,7)(6,10)(9,15)(12,14)(13,16)(17,19)(18,23)(20,26)(21,25)(22,27)(24,30)(28,31)(29,32)(33,36,39,35)(34,41,40,45)(37,46,48,43)(38,47,42,44)(1,4,6,13)(2,9,7,12)(3,11,10,16)(5,14,8,15)(17,20)(18,24)(19,26)(21,28)(22,29)(23,30)(25,31)(27,32)(33,37)(34,42)(35,43)(36,46)(38,40)(39,48)(41,44)(45,47)(1,5,6,8)(2,3,7,10)(4,14,13,15)(9,11,12,16)(17,21,22,18)(19,25,27,23)(20,28,29,24)(26,31,32,30)(33,38,39,42)(34,37,40,48)(35,44,36,47)(41,46,45,43)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.